Starcore Reports on Its Silver Project

Original announcement by tmx on

Company
Starcore International Mines Ltd.
Ticker
SAM
Exchange
TSX
Region
Queretaro, Mexico
Primary commodity
Silver
Secondary commodities
Gold, Copper, Lead, Zinc, Selenium, Iron ore
Document categories
Metallurgy
Extracted
2026-08-21 07:49:23 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Starcore reports metallurgical test results for its Tortilla Project in Mexico, demonstrating that CIL processing significantly enhances recoveries. After 72 hours, silver recovery reached 84.75% and gold recovery reached 79.85% using granular activated carbon.

Reasoning: Metallurgical testing demonstrates that adding granular activated carbon (CIL) significantly improves both gold and silver recoveries, validating a viable processing route for the high-grade silver project.

Positive factors

  • Significant recovery improvement with CIL process
  • High silver head grade
  • Qualified Person sign-off

Negative factors

  • Standard leaching recoveries are relatively low

Facts used in scoring: 4

Classification and evidence

Mill Routeneutral

Processing via mill or concentrator (CIL, CIP, tank leach, flotation).

Why it applies: The company demonstrates that the mineral can be effectively processed using the CIL (carbon-in-leach) process.

Evidence · text

“demonstrates that the mineral can be effectively processed using the CIL (carbon-in-leach) process.”

QP/CP Signedpositive · Story-specific tag

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: Salvador Garcia, B. Eng., is named as the qualified person on the project.

Evidence · text

“Salvador Garcia, B. Eng., a director of the Company and Chief Operating Officer, is the Company's qualified person”

Extracted facts

Stored fact records: 4. Some facts used in scoring do not have a stored record.

Metallurgical Results (4)

Fact 1goldRecovery: 79.85 %Head Grade: 2.15Head Grade Unit: gr/tonView all details
Link to this fact

Identity

Commodity
gold
Ticker
SAM

Test Work

Processing Route
cyanidation with granular activated carbon (CIL)
Sample
Metallurgical test head grade
Leach Time
72 hours

Recovery

Recovery
79.85 %
Recovery Basis
actual_test
Head Grade
2.15
Head Grade Unit
gr/ton

Review

Needs Review
No
Historical
No

Dates

Event date
2025-07-14T00:00:00.000Z

Reasoning: 79.85% recovery at 72 hours using CIL is a strong result for gold.

Positive factors

  • High recovery for CIL route

Evidence · text

“Leaching with granular activated carbon significantly enhanced gold recoveries, increasing to 79.85%”
Fact 2silverRecovery: 84.75 %Head Grade: 968.33Head Grade Unit: gr/tonView all details
Link to this fact

Identity

Commodity
silver
Ticker
SAM

Test Work

Processing Route
cyanidation with granular activated carbon (CIL)
Sample
Metallurgical test head grade
Leach Time
72 hours

Recovery

Recovery
84.75 %
Recovery Basis
actual_test
Head Grade
968.33
Head Grade Unit
gr/ton

Review

Needs Review
No
Historical
No

Dates

Event date
2025-07-14T00:00:00.000Z

Reasoning: 84.75% silver recovery at 72 hours using CIL is a strong result.

Positive factors

  • High silver recovery

Evidence · text

“while silver recoveries rose to 84.75%”
Fact 3goldRecovery: 56.25 %Head Grade: 2.15Head Grade Unit: gr/tonView all details
Link to this fact

Identity

Commodity
gold
Ticker
SAM

Test Work

Processing Route
Standard Leaching
Sample
Standard Leaching (no carbon) - 72 hours
Leach Time
72 hours

Recovery

Recovery
56.25 %
Recovery Basis
actual_test
Head Grade
2.15
Head Grade Unit
gr/ton

Review

Needs Review
No
Historical
No

Dates

Event date
2025-07-14T00:00:00.000Z

Reasoning: 56.25% recovery is relatively low for gold, highlighting the necessity of the CIL process.

Negative factors

  • Low recovery without carbon

Evidence · text

“indicated a recovery of 56.25% for gold”
Fact 4silverRecovery: 78.23 %Head Grade: 968.33Head Grade Unit: gr/tonView all details
Link to this fact

Identity

Commodity
silver
Ticker
SAM

Test Work

Processing Route
Standard Leaching
Sample
Standard Leaching (no carbon) - 72 hours
Leach Time
72 hours

Recovery

Recovery
78.23 %
Recovery Basis
actual_test
Head Grade
968.33
Head Grade Unit
gr/ton

Review

Needs Review
No
Historical
No

Dates

Event date
2025-07-14T00:00:00.000Z

Reasoning: 78.23% recovery is moderate for silver without carbon.

Evidence · text

“and 78.23% for silver.”

How Atlas produces this analysis

Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.